Mechanical degradation of polyisobutylene under turbulent flow

被引：23

作者：

Lee, K

Kim, CA

Lim, ST

Kwon, DH

Choi, HJ ^{[1
]}

Jhon, MS

机构：

[1] Inha Univ, Dept Polymer Sci & Engn, Inchon 402751, South Korea

[2] Carnegie Mellon Univ, Dept Chem Engn, Pittsburgh, PA 15213 USA

来源：

COLLOID AND POLYMER SCIENCE | 2002年 / 280卷 / 08期

关键词：

drag reduction; mechanical degradation; polyisobutylene; polymer degradation; kerosene;

D O I：

10.1007/s00396-002-0690-3

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 [物理化学]; 081704 [应用化学];

摘要：

Turbulent drag reduction (DR), induced by oil-soluble polyisobutylene (PIB) in kerosene, and chain degradation of PIB in a turbulent flow field are examined via a rotating disk apparatus. The DR efficiency decreases with time owing to the mechanical degradation of the PIB molecules. The DR efficiency and the amount of degradation are fitted to an exponential function and are compared with molecular weights measured by size-exclusion chromatography.

引用

页码：779 / 782

页数：4

共 41 条

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TURBULENCE INDUCED CHANGE IN THE CONFORMATION OF POLYMER-MOLECULES [J].